Charmionium (stan zwi±zany kwarku c i antykwarku c )

Stan
Energia [MeV]
ηc(1S)
2979.7 ± 1.5
ηc(2S)
3594 ± 5
J/ψ(1S)
3096.87 ± 0.04
Ψ(2S)
3685.96 ± 0.09
χc0(1P)
3415.1 ± 0.8
χc1(1P)
3510.51 ± 0.12
χc2(1P)
3556.16 ± 0.13

¬ródło: Particles and fields, Phys. Rev. D., Vol. 66, No 1-I, 2002, str. 719